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In Mathematics / Middle School | 2014-11-18

How do you write \( 8 \frac{21}{40} \) as a decimal?

Asked by moore1dajean

Answer (3)

to write 8 21/40 as a decimal we need to write the fraction where denominator is a power of 10. the denominator now is 40, when we multiply 40 by 25, we get 1000. then the denominator would be a power of 10. lets multiply the fraction 21/40 by 25 40 ∗ 25 21 ∗ 25 ​ = 1000 525 ​ 8 21/40 is a mixed fraction made of 8 wholes and a fraction that is now 525/1000. when dividing by 1000, the decimal point that is after 525 should move 3 decimal places to the left, then the decimal point comes before 525. then 21/40 is equal to 0.525. since we have 8 wholes; 8 + 0.525 = 8.525

Answered by blahblahmali | 2024-06-11

To write 8 21/40 as a decimal , convert the fraction 21/40 to a decimal, which is 0.525, and add it to the whole number 8, yielding 8.525. ;

Answered by AngelaLansbury | 2024-06-24

The mixed number 8 40 21 ​ can be converted to a decimal by first converting the fraction 40 21 ​ to 0.525 . Then, adding this decimal to the whole number 8 gives 8.525 . Therefore, 8 40 21 ​ as a decimal is 8.525 .
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Answered by blahblahmali | 2024-09-04